Appeal No. 98-0588
Application 08/501,293
the selected host computer. (Paper No. 22 at 3).
We will first address appellants’ second argument and
then address appellants’ first and third arguments together.
While we agree with appellants that Reddersen does not teach a
scanner having a transmitter, or a host computer having a
receiver, we disagree with appellants that Tymes fails to
teach these features. Tymes generally teaches a data
transmission system for linking a plurality of bar code
readers with a host computer through intermediate computers,
or intermediate base stations. The bar code readers
communicate with the intermediate computers over an RF link.
(Tymes at abstract). The bar code readers have a radio
transceiver 44 which, depending on a switch setting, functions
as both a radio receiver and radio transmitter, for receiving
information from the intermediate computers and for
transmitting information to the intermediate computers.
(Tymes, Fig. 4, column 8, lines 41-45, Fig. 9, column 15,
lines 58-60). Tymes further describes that the radio
transceiver 44 and the antenna 45 are contained within the
scanner housing shown in Fig. 5. (Tymes, Fig. 5, column 10,
lines 45-50).
Tymes further teaches that associated with each
intermediate computer is a radio transceiver 34 connected to
9
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